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50-600m

Elevation:

Tillamook Rainforest

Abiotic Factors

Temperature: 5 – 20 degrees Celsius

Precipitation:

Average: 80 – 200 cm per year; rain, snow, fog.

Elevation:

50 - 600 meters above sea level

Low Decomposition Rate

- Fertile Soil

- Autotrophs

High Humidity

Two distinct Seasons

Invasive Species

Native Species

  • Invasive species such as Himalayan Blackberry are a major threat to the wildlife in Tillamook Rainforest.
  • They are depleting resources that are already becoming scarcer.
  • By displacing any native plant, these species create a gap in the food web.

Tillamook Rainforest hosts more than 300 different Plant and Animal Species

Himalayan Blackberry

Image from:

http://crawford.tardigrade.net/journal/album/baldsunrubus.jpg

Douglas Fir

Clouded Salamander

Coho

Sitka Deer

Black Bear

Racoon

Dusky Tree Vole

Spotted Owl

Bald Eagle

Psuedotsuga menziesii

Aneides ferrus

Oncorhynchus kisutch

Odocoilus hemionus sitkensis

Ursus americanus

Procyon lotor

Arborimus

Strix occidentalis

Haliaeetus leucocenphalus

http://www.californiaherps.com/salamanders/pages/a.ferreus.html

English Ivy

http://www.fws.gov/oregonfwo/Species/Data/RedTreeVole/

Oregon Temperate Rainforest

Hetera Helix

  • Latin name:
  • Originated in England, brought to US as a decorative plant, then took over.
  • Grows on ground and on trees.
  • Climbs towards the sun, blocking the light from the tree it grows on.
  • Eventually kill the tree completely.
  • Vast colonies on the ground are harbor to Leaf Scorch, a bacteria that kills native plants.
  • A common target for volunteer work.

Image from: http://www.nps.gov/plants/alien/fact/hehe1.htm

By: Vincent Miller, Eric Wang, and Adele English

English Ivy

Black Rat

Over Logging?

Rattus rattus

"logging, fire, and urban and agricultural development is the greatest threat to Tillamook and North Coast species"

This is an age-old issue but has gained more momentum in the 21st century with the news

  • Latin name:
  • Native to Asia, came to Europe on exporation vessels, then came to US on German ships around 1775
  • Can have up to 60 offspring in a single year.
  • Eat bird eggs, reducing these populations.
  • Carry many dangerous diseases, which can be spread through fleas as well as direct contact.
  • Eradicated by mass-pesticide, or captured and tracked

Timber Industries manage their land with a rotational system to preserve tree population but use little consideration towards wildlife

Forests have been reduces to 1% of historical levels

Works Cited:

206 species of concern have been identified in Tillamook State Forest

Black Rat

Image from: http://www.fs.usda.gov/Internet/FSE_MEDIA/fsbdev3_043380.jpg

Interesting side fact: About 55% of the earth's temperate rainforest has been destroyed, making these forests even more rare.

http://en.wikipedia.org/wiki/Lumber

Books:

  • Boersma, P. D., Sarah H. Reichard, and Buren A. N. Van. Invasive Species in the Pacific Northwest. Seattle, WA: University of Washington, 2006. Print.
  • Kozloff, Eugene N. Plants and Animals of the Pacific Northwest: An Illustrated Guide to the Natural History of Western Oregon, Washington and British Columbia. University of Washington, 1976. Print.

Web sites:

  • http://www.marietta.edu/~biol/biomes/temprain.htm
  • http://www.nps.gov/olym/naturescience/temperate-rain-forests.htm
  • http://www.biologicaldiversity.org/publications/papers/TillamookReport.pdf
  • http://www.tillamookbaywatershedcouncil.net/
  • http://www.ehow.com/info_8735800_temperate-rainforest.html
  • http://jcwc.org/wp-content/uploads/2012/03/City-of-Portland-Invasive-Animal-List.pdf
  • http://www.nps.gov/plants/alien/fact/hehe1.htm
  • http://en.wikipedia.org/wiki/Black_rat

http://www.marlimillerphoto.com/timber.html

What should we do about this?

  • Recycle to lower our dependency on lumber
  • Create more protected areas

The Temperate Forest is one of the rarities of the world, we enjoy its beauty on hikes etc. and so we must protect it.

"A thing is right if it tends to preserve the integrity, stability and beauty of biotic community." Aldo Leopold

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